BEGIN;
UPDATE t1 SET b=b*2 WHERE a>=0 AND a<10;
UPDATE t1 SET b=b*2 WHERE a>=10 AND a<20;
UPDATE t1 SET b=b*2 WHERE a>=20 AND a<30;
UPDATE t1 SET b=b*2 WHERE a>=30 AND a<40;
UPDATE t1 SET b=b*2 WHERE a>=40 AND a<50;
UPDATE t1 SET b=b*2 WHERE a>=50 AND a<60;
UPDATE t1 SET b=b*2 WHERE a>=60 AND a<70;
UPDATE t1 SET b=b*2 WHERE a>=70 AND a<80;
UPDATE t1 SET b=b*2 WHERE a>=80 AND a<90;
UPDATE t1 SET b=b*2 WHERE a>=90 AND a<100;
UPDATE t1 SET b=b*2 WHERE a>=100 AND a<110;
UPDATE t1 SET b=b*2 WHERE a>=110 AND a<120;
UPDATE t1 SET b=b*2 WHERE a>=120 AND a<130;
UPDATE t1 SET b=b*2 WHERE a>=130 AND a<140;
UPDATE t1 SET b=b*2 WHERE a>=140 AND a<150;
UPDATE t1 SET b=b*2 WHERE a>=150 AND a<160;
UPDATE t1 SET b=b*2 WHERE a>=160 AND a<170;
UPDATE t1 SET b=b*2 WHERE a>=170 AND a<180;
UPDATE t1 SET b=b*2 WHERE a>=180 AND a<190;
UPDATE t1 SET b=b*2 WHERE a>=190 AND a<200;
UPDATE t1 SET b=b*2 WHERE a>=200 AND a<210;
UPDATE t1 SET b=b*2 WHERE a>=210 AND a<220;
UPDATE t1 SET b=b*2 WHERE a>=220 AND a<230;
UPDATE t1 SET b=b*2 WHERE a>=230 AND a<240;
UPDATE t1 SET b=b*2 WHERE a>=240 AND a<250;
UPDATE t1 SET b=b*2 WHERE a>=250 AND a<260;
UPDATE t1 SET b=b*2 WHERE a>=260 AND a<270;
UPDATE t1 SET b=b*2 WHERE a>=270 AND a<280;
UPDATE t1 SET b=b*2 WHERE a>=280 AND a<290;
UPDATE t1 SET b=b*2 WHERE a>=290 AND a<300;
UPDATE t1 SET b=b*2 WHERE a>=300 AND a<310;
UPDATE t1 SET b=b*2 WHERE a>=310 AND a<320;
UPDATE t1 SET b=b*2 WHERE a>=320 AND a<330;
UPDATE t1 SET b=b*2 WHERE a>=330 AND a<340;
UPDATE t1 SET b=b*2 WHERE a>=340 AND a<350;
UPDATE t1 SET b=b*2 WHERE a>=350 AND a<360;
UPDATE t1 SET b=b*2 WHERE a>=360 AND a<370;
UPDATE t1 SET b=b*2 WHERE a>=370 AND a<380;
UPDATE t1 SET b=b*2 WHERE a>=380 AND a<390;
UPDATE t1 SET b=b*2 WHERE a>=390 AND a<400;
UPDATE t1 SET b=b*2 WHERE a>=400 AND a<410;
UPDATE t1 SET b=b*2 WHERE a>=410 AND a<420;
UPDATE t1 SET b=b*2 WHERE a>=420 AND a<430;
UPDATE t1 SET b=b*2 WHERE a>=430 AND a<440;
UPDATE t1 SET b=b*2 WHERE a>=440 AND a<450;
UPDATE t1 SET b=b*2 WHERE a>=450 AND a<460;
UPDATE t1 SET b=b*2 WHERE a>=460 AND a<470;
UPDATE t1 SET b=b*2 WHERE a>=470 AND a<480;
UPDATE t1 SET b=b*2 WHERE a>=480 AND a<490;
UPDATE t1 SET b=b*2 WHERE a>=490 AND a<500;
UPDATE t1 SET b=b*2 WHERE a>=500 AND a<510;
UPDATE t1 SET b=b*2 WHERE a>=510 AND a<520;
UPDATE t1 SET b=b*2 WHERE a>=520 AND a<530;
UPDATE t1 SET b=b*2 WHERE a>=530 AND a<540;
UPDATE t1 SET b=b*2 WHERE a>=540 AND a<550;
UPDATE t1 SET b=b*2 WHERE a>=550 AND a<560;
UPDATE t1 SET b=b*2 WHERE a>=560 AND a<570;
UPDATE t1 SET b=b*2 WHERE a>=570 AND a<580;
UPDATE t1 SET b=b*2 WHERE a>=580 AND a<590;
UPDATE t1 SET b=b*2 WHERE a>=590 AND a<600;
UPDATE t1 SET b=b*2 WHERE a>=600 AND a<610;
UPDATE t1 SET b=b*2 WHERE a>=610 AND a<620;
UPDATE t1 SET b=b*2 WHERE a>=620 AND a<630;
UPDATE t1 SET b=b*2 WHERE a>=630 AND a<640;
UPDATE t1 SET b=b*2 WHERE a>=640 AND a<650;
UPDATE t1 SET b=b*2 WHERE a>=650 AND a<660;
UPDATE t1 SET b=b*2 WHERE a>=660 AND a<670;
UPDATE t1 SET b=b*2 WHERE a>=670 AND a<680;
UPDATE t1 SET b=b*2 WHERE a>=680 AND a<690;
UPDATE t1 SET b=b*2 WHERE a>=690 AND a<700;
UPDATE t1 SET b=b*2 WHERE a>=700 AND a<710;
UPDATE t1 SET b=b*2 WHERE a>=710 AND a<720;
UPDATE t1 SET b=b*2 WHERE a>=720 AND a<730;
UPDATE t1 SET b=b*2 WHERE a>=730 AND a<740;
UPDATE t1 SET b=b*2 WHERE a>=740 AND a<750;
UPDATE t1 SET b=b*2 WHERE a>=750 AND a<760;
UPDATE t1 SET b=b*2 WHERE a>=760 AND a<770;
UPDATE t1 SET b=b*2 WHERE a>=770 AND a<780;
UPDATE t1 SET b=b*2 WHERE a>=780 AND a<790;
UPDATE t1 SET b=b*2 WHERE a>=790 AND a<800;
UPDATE t1 SET b=b*2 WHERE a>=800 AND a<810;
UPDATE t1 SET b=b*2 WHERE a>=810 AND a<820;
UPDATE t1 SET b=b*2 WHERE a>=820 AND a<830;
UPDATE t1 SET b=b*2 WHERE a>=830 AND a<840;
UPDATE t1 SET b=b*2 WHERE a>=840 AND a<850;
UPDATE t1 SET b=b*2 WHERE a>=850 AND a<860;
UPDATE t1 SET b=b*2 WHERE a>=860 AND a<870;
UPDATE t1 SET b=b*2 WHERE a>=870 AND a<880;
UPDATE t1 SET b=b*2 WHERE a>=880 AND a<890;
UPDATE t1 SET b=b*2 WHERE a>=890 AND a<900;
UPDATE t1 SET b=b*2 WHERE a>=900 AND a<910;
UPDATE t1 SET b=b*2 WHERE a>=910 AND a<920;
UPDATE t1 SET b=b*2 WHERE a>=920 AND a<930;
UPDATE t1 SET b=b*2 WHERE a>=930 AND a<940;
UPDATE t1 SET b=b*2 WHERE a>=940 AND a<950;
UPDATE t1 SET b=b*2 WHERE a>=950 AND a<960;
UPDATE t1 SET b=b*2 WHERE a>=960 AND a<970;
UPDATE t1 SET b=b*2 WHERE a>=970 AND a<980;
UPDATE t1 SET b=b*2 WHERE a>=980 AND a<990;
UPDATE t1 SET b=b*2 WHERE a>=990 AND a<1000;
UPDATE t1 SET b=b*2 WHERE a>=1000 AND a<1010;
UPDATE t1 SET b=b*2 WHERE a>=1010 AND a<1020;
UPDATE t1 SET b=b*2 WHERE a>=1020 AND a<1030;
UPDATE t1 SET b=b*2 WHERE a>=1030 AND a<1040;
UPDATE t1 SET b=b*2 WHERE a>=1040 AND a<1050;
UPDATE t1 SET b=b*2 WHERE a>=1050 AND a<1060;
UPDATE t1 SET b=b*2 WHERE a>=1060 AND a<1070;
UPDATE t1 SET b=b*2 WHERE a>=1070 AND a<1080;
UPDATE t1 SET b=b*2 WHERE a>=1080 AND a<1090;
UPDATE t1 SET b=b*2 WHERE a>=1090 AND a<1100;
UPDATE t1 SET b=b*2 WHERE a>=1100 AND a<1110;
UPDATE t1 SET b=b*2 WHERE a>=1110 AND a<1120;
UPDATE t1 SET b=b*2 WHERE a>=1120 AND a<1130;
UPDATE t1 SET b=b*2 WHERE a>=1130 AND a<1140;
UPDATE t1 SET b=b*2 WHERE a>=1140 AND a<1150;
UPDATE t1 SET b=b*2 WHERE a>=1150 AND a<1160;
UPDATE t1 SET b=b*2 WHERE a>=1160 AND a<1170;
UPDATE t1 SET b=b*2 WHERE a>=1170 AND a<1180;
UPDATE t1 SET b=b*2 WHERE a>=1180 AND a<1190;
UPDATE t1 SET b=b*2 WHERE a>=1190 AND a<1200;
UPDATE t1 SET b=b*2 WHERE a>=1200 AND a<1210;
UPDATE t1 SET b=b*2 WHERE a>=1210 AND a<1220;
UPDATE t1 SET b=b*2 WHERE a>=1220 AND a<1230;
UPDATE t1 SET b=b*2 WHERE a>=1230 AND a<1240;
UPDATE t1 SET b=b*2 WHERE a>=1240 AND a<1250;
UPDATE t1 SET b=b*2 WHERE a>=1250 AND a<1260;
UPDATE t1 SET b=b*2 WHERE a>=1260 AND a<1270;
UPDATE t1 SET b=b*2 WHERE a>=1270 AND a<1280;
UPDATE t1 SET b=b*2 WHERE a>=1280 AND a<1290;
UPDATE t1 SET b=b*2 WHERE a>=1290 AND a<1300;
UPDATE t1 SET b=b*2 WHERE a>=1300 AND a<1310;
UPDATE t1 SET b=b*2 WHERE a>=1310 AND a<1320;
UPDATE t1 SET b=b*2 WHERE a>=1320 AND a<1330;
UPDATE t1 SET b=b*2 WHERE a>=1330 AND a<1340;
UPDATE t1 SET b=b*2 WHERE a>=1340 AND a<1350;
UPDATE t1 SET b=b*2 WHERE a>=1350 AND a<1360;
UPDATE t1 SET b=b*2 WHERE a>=1360 AND a<1370;
UPDATE t1 SET b=b*2 WHERE a>=1370 AND a<1380;
UPDATE t1 SET b=b*2 WHERE a>=1380 AND a<1390;
UPDATE t1 SET b=b*2 WHERE a>=1390 AND a<1400;
UPDATE t1 SET b=b*2 WHERE a>=1400 AND a<1410;
UPDATE t1 SET b=b*2 WHERE a>=1410 AND a<1420;
UPDATE t1 SET b=b*2 WHERE a>=1420 AND a<1430;
UPDATE t1 SET b=b*2 WHERE a>=1430 AND a<1440;
UPDATE t1 SET b=b*2 WHERE a>=1440 AND a<1450;
UPDATE t1 SET b=b*2 WHERE a>=1450 AND a<1460;
UPDATE t1 SET b=b*2 WHERE a>=1460 AND a<1470;
UPDATE t1 SET b=b*2 WHERE a>=1470 AND a<1480;
UPDATE t1 SET b=b*2 WHERE a>=1480 AND a<1490;
UPDATE t1 SET b=b*2 WHERE a>=1490 AND a<1500;
UPDATE t1 SET b=b*2 WHERE a>=1500 AND a<1510;
UPDATE t1 SET b=b*2 WHERE a>=1510 AND a<1520;
UPDATE t1 SET b=b*2 WHERE a>=1520 AND a<1530;
UPDATE t1 SET b=b*2 WHERE a>=1530 AND a<1540;
UPDATE t1 SET b=b*2 WHERE a>=1540 AND a<1550;
UPDATE t1 SET b=b*2 WHERE a>=1550 AND a<1560;
UPDATE t1 SET b=b*2 WHERE a>=1560 AND a<1570;
UPDATE t1 SET b=b*2 WHERE a>=1570 AND a<1580;
UPDATE t1 SET b=b*2 WHERE a>=1580 AND a<1590;
UPDATE t1 SET b=b*2 WHERE a>=1590 AND a<1600;
UPDATE t1 SET b=b*2 WHERE a>=1600 AND a<1610;
UPDATE t1 SET b=b*2 WHERE a>=1610 AND a<1620;
UPDATE t1 SET b=b*2 WHERE a>=1620 AND a<1630;
UPDATE t1 SET b=b*2 WHERE a>=1630 AND a<1640;
UPDATE t1 SET b=b*2 WHERE a>=1640 AND a<1650;
UPDATE t1 SET b=b*2 WHERE a>=1650 AND a<1660;
UPDATE t1 SET b=b*2 WHERE a>=1660 AND a<1670;
UPDATE t1 SET b=b*2 WHERE a>=1670 AND a<1680;
UPDATE t1 SET b=b*2 WHERE a>=1680 AND a<1690;
UPDATE t1 SET b=b*2 WHERE a>=1690 AND a<1700;
UPDATE t1 SET b=b*2 WHERE a>=1700 AND a<1710;
UPDATE t1 SET b=b*2 WHERE a>=1710 AND a<1720;
UPDATE t1 SET b=b*2 WHERE a>=1720 AND a<1730;
UPDATE t1 SET b=b*2 WHERE a>=1730 AND a<1740;
UPDATE t1 SET b=b*2 WHERE a>=1740 AND a<1750;
UPDATE t1 SET b=b*2 WHERE a>=1750 AND a<1760;
UPDATE t1 SET b=b*2 WHERE a>=1760 AND a<1770;
UPDATE t1 SET b=b*2 WHERE a>=1770 AND a<1780;
UPDATE t1 SET b=b*2 WHERE a>=1780 AND a<1790;
UPDATE t1 SET b=b*2 WHERE a>=1790 AND a<1800;
UPDATE t1 SET b=b*2 WHERE a>=1800 AND a<1810;
UPDATE t1 SET b=b*2 WHERE a>=1810 AND a<1820;
UPDATE t1 SET b=b*2 WHERE a>=1820 AND a<1830;
UPDATE t1 SET b=b*2 WHERE a>=1830 AND a<1840;
UPDATE t1 SET b=b*2 WHERE a>=1840 AND a<1850;
UPDATE t1 SET b=b*2 WHERE a>=1850 AND a<1860;
UPDATE t1 SET b=b*2 WHERE a>=1860 AND a<1870;
UPDATE t1 SET b=b*2 WHERE a>=1870 AND a<1880;
UPDATE t1 SET b=b*2 WHERE a>=1880 AND a<1890;
UPDATE t1 SET b=b*2 WHERE a>=1890 AND a<1900;
UPDATE t1 SET b=b*2 WHERE a>=1900 AND a<1910;
UPDATE t1 SET b=b*2 WHERE a>=1910 AND a<1920;
UPDATE t1 SET b=b*2 WHERE a>=1920 AND a<1930;
UPDATE t1 SET b=b*2 WHERE a>=1930 AND a<1940;
UPDATE t1 SET b=b*2 WHERE a>=1940 AND a<1950;
UPDATE t1 SET b=b*2 WHERE a>=1950 AND a<1960;
UPDATE t1 SET b=b*2 WHERE a>=1960 AND a<1970;
UPDATE t1 SET b=b*2 WHERE a>=1970 AND a<1980;
UPDATE t1 SET b=b*2 WHERE a>=1980 AND a<1990;
UPDATE t1 SET b=b*2 WHERE a>=1990 AND a<2000;
UPDATE t1 SET b=b*2 WHERE a>=2000 AND a<2010;
UPDATE t1 SET b=b*2 WHERE a>=2010 AND a<2020;
UPDATE t1 SET b=b*2 WHERE a>=2020 AND a<2030;
UPDATE t1 SET b=b*2 WHERE a>=2030 AND a<2040;
UPDATE t1 SET b=b*2 WHERE a>=2040 AND a<2050;
UPDATE t1 SET b=b*2 WHERE a>=2050 AND a<2060;
UPDATE t1 SET b=b*2 WHERE a>=2060 AND a<2070;
UPDATE t1 SET b=b*2 WHERE a>=2070 AND a<2080;
UPDATE t1 SET b=b*2 WHERE a>=2080 AND a<2090;
UPDATE t1 SET b=b*2 WHERE a>=2090 AND a<2100;
UPDATE t1 SET b=b*2 WHERE a>=2100 AND a<2110;
UPDATE t1 SET b=b*2 WHERE a>=2110 AND a<2120;
UPDATE t1 SET b=b*2 WHERE a>=2120 AND a<2130;
UPDATE t1 SET b=b*2 WHERE a>=2130 AND a<2140;
UPDATE t1 SET b=b*2 WHERE a>=2140 AND a<2150;
UPDATE t1 SET b=b*2 WHERE a>=2150 AND a<2160;
UPDATE t1 SET b=b*2 WHERE a>=2160 AND a<2170;
UPDATE t1 SET b=b*2 WHERE a>=2170 AND a<2180;
UPDATE t1 SET b=b*2 WHERE a>=2180 AND a<2190;
UPDATE t1 SET b=b*2 WHERE a>=2190 AND a<2200;
UPDATE t1 SET b=b*2 WHERE a>=2200 AND a<2210;
UPDATE t1 SET b=b*2 WHERE a>=2210 AND a<2220;
UPDATE t1 SET b=b*2 WHERE a>=2220 AND a<2230;
UPDATE t1 SET b=b*2 WHERE a>=2230 AND a<2240;
UPDATE t1 SET b=b*2 WHERE a>=2240 AND a<2250;
UPDATE t1 SET b=b*2 WHERE a>=2250 AND a<2260;
UPDATE t1 SET b=b*2 WHERE a>=2260 AND a<2270;
UPDATE t1 SET b=b*2 WHERE a>=2270 AND a<2280;
UPDATE t1 SET b=b*2 WHERE a>=2280 AND a<2290;
UPDATE t1 SET b=b*2 WHERE a>=2290 AND a<2300;
UPDATE t1 SET b=b*2 WHERE a>=2300 AND a<2310;
UPDATE t1 SET b=b*2 WHERE a>=2310 AND a<2320;
UPDATE t1 SET b=b*2 WHERE a>=2320 AND a<2330;
UPDATE t1 SET b=b*2 WHERE a>=2330 AND a<2340;
UPDATE t1 SET b=b*2 WHERE a>=2340 AND a<2350;
UPDATE t1 SET b=b*2 WHERE a>=2350 AND a<2360;
UPDATE t1 SET b=b*2 WHERE a>=2360 AND a<2370;
UPDATE t1 SET b=b*2 WHERE a>=2370 AND a<2380;
UPDATE t1 SET b=b*2 WHERE a>=2380 AND a<2390;
UPDATE t1 SET b=b*2 WHERE a>=2390 AND a<2400;
UPDATE t1 SET b=b*2 WHERE a>=2400 AND a<2410;
UPDATE t1 SET b=b*2 WHERE a>=2410 AND a<2420;
UPDATE t1 SET b=b*2 WHERE a>=2420 AND a<2430;
UPDATE t1 SET b=b*2 WHERE a>=2430 AND a<2440;
UPDATE t1 SET b=b*2 WHERE a>=2440 AND a<2450;
UPDATE t1 SET b=b*2 WHERE a>=2450 AND a<2460;
UPDATE t1 SET b=b*2 WHERE a>=2460 AND a<2470;
UPDATE t1 SET b=b*2 WHERE a>=2470 AND a<2480;
UPDATE t1 SET b=b*2 WHERE a>=2480 AND a<2490;
UPDATE t1 SET b=b*2 WHERE a>=2490 AND a<2500;
UPDATE t1 SET b=b*2 WHERE a>=2500 AND a<2510;
UPDATE t1 SET b=b*2 WHERE a>=2510 AND a<2520;
UPDATE t1 SET b=b*2 WHERE a>=2520 AND a<2530;
UPDATE t1 SET b=b*2 WHERE a>=2530 AND a<2540;
UPDATE t1 SET b=b*2 WHERE a>=2540 AND a<2550;
UPDATE t1 SET b=b*2 WHERE a>=2550 AND a<2560;
UPDATE t1 SET b=b*2 WHERE a>=2560 AND a<2570;
UPDATE t1 SET b=b*2 WHERE a>=2570 AND a<2580;
UPDATE t1 SET b=b*2 WHERE a>=2580 AND a<2590;
UPDATE t1 SET b=b*2 WHERE a>=2590 AND a<2600;
UPDATE t1 SET b=b*2 WHERE a>=2600 AND a<2610;
UPDATE t1 SET b=b*2 WHERE a>=2610 AND a<2620;
UPDATE t1 SET b=b*2 WHERE a>=2620 AND a<2630;
UPDATE t1 SET b=b*2 WHERE a>=2630 AND a<2640;
UPDATE t1 SET b=b*2 WHERE a>=2640 AND a<2650;
UPDATE t1 SET b=b*2 WHERE a>=2650 AND a<2660;
UPDATE t1 SET b=b*2 WHERE a>=2660 AND a<2670;
UPDATE t1 SET b=b*2 WHERE a>=2670 AND a<2680;
UPDATE t1 SET b=b*2 WHERE a>=2680 AND a<2690;
UPDATE t1 SET b=b*2 WHERE a>=2690 AND a<2700;
UPDATE t1 SET b=b*2 WHERE a>=2700 AND a<2710;
UPDATE t1 SET b=b*2 WHERE a>=2710 AND a<2720;
UPDATE t1 SET b=b*2 WHERE a>=2720 AND a<2730;
UPDATE t1 SET b=b*2 WHERE a>=2730 AND a<2740;
UPDATE t1 SET b=b*2 WHERE a>=2740 AND a<2750;
UPDATE t1 SET b=b*2 WHERE a>=2750 AND a<2760;
UPDATE t1 SET b=b*2 WHERE a>=2760 AND a<2770;
UPDATE t1 SET b=b*2 WHERE a>=2770 AND a<2780;
UPDATE t1 SET b=b*2 WHERE a>=2780 AND a<2790;
UPDATE t1 SET b=b*2 WHERE a>=2790 AND a<2800;
UPDATE t1 SET b=b*2 WHERE a>=2800 AND a<2810;
UPDATE t1 SET b=b*2 WHERE a>=2810 AND a<2820;
UPDATE t1 SET b=b*2 WHERE a>=2820 AND a<2830;
UPDATE t1 SET b=b*2 WHERE a>=2830 AND a<2840;
UPDATE t1 SET b=b*2 WHERE a>=2840 AND a<2850;
UPDATE t1 SET b=b*2 WHERE a>=2850 AND a<2860;
UPDATE t1 SET b=b*2 WHERE a>=2860 AND a<2870;
UPDATE t1 SET b=b*2 WHERE a>=2870 AND a<2880;
UPDATE t1 SET b=b*2 WHERE a>=2880 AND a<2890;
UPDATE t1 SET b=b*2 WHERE a>=2890 AND a<2900;
UPDATE t1 SET b=b*2 WHERE a>=2900 AND a<2910;
UPDATE t1 SET b=b*2 WHERE a>=2910 AND a<2920;
UPDATE t1 SET b=b*2 WHERE a>=2920 AND a<2930;
UPDATE t1 SET b=b*2 WHERE a>=2930 AND a<2940;
UPDATE t1 SET b=b*2 WHERE a>=2940 AND a<2950;
UPDATE t1 SET b=b*2 WHERE a>=2950 AND a<2960;
UPDATE t1 SET b=b*2 WHERE a>=2960 AND a<2970;
UPDATE t1 SET b=b*2 WHERE a>=2970 AND a<2980;
UPDATE t1 SET b=b*2 WHERE a>=2980 AND a<2990;
UPDATE t1 SET b=b*2 WHERE a>=2990 AND a<3000;
UPDATE t1 SET b=b*2 WHERE a>=3000 AND a<3010;
UPDATE t1 SET b=b*2 WHERE a>=3010 AND a<3020;
UPDATE t1 SET b=b*2 WHERE a>=3020 AND a<3030;
UPDATE t1 SET b=b*2 WHERE a>=3030 AND a<3040;
UPDATE t1 SET b=b*2 WHERE a>=3040 AND a<3050;
UPDATE t1 SET b=b*2 WHERE a>=3050 AND a<3060;
UPDATE t1 SET b=b*2 WHERE a>=3060 AND a<3070;
UPDATE t1 SET b=b*2 WHERE a>=3070 AND a<3080;
UPDATE t1 SET b=b*2 WHERE a>=3080 AND a<3090;
UPDATE t1 SET b=b*2 WHERE a>=3090 AND a<3100;
UPDATE t1 SET b=b*2 WHERE a>=3100 AND a<3110;
UPDATE t1 SET b=b*2 WHERE a>=3110 AND a<3120;
UPDATE t1 SET b=b*2 WHERE a>=3120 AND a<3130;
UPDATE t1 SET b=b*2 WHERE a>=3130 AND a<3140;
UPDATE t1 SET b=b*2 WHERE a>=3140 AND a<3150;
UPDATE t1 SET b=b*2 WHERE a>=3150 AND a<3160;
UPDATE t1 SET b=b*2 WHERE a>=3160 AND a<3170;
UPDATE t1 SET b=b*2 WHERE a>=3170 AND a<3180;
UPDATE t1 SET b=b*2 WHERE a>=3180 AND a<3190;
UPDATE t1 SET b=b*2 WHERE a>=3190 AND a<3200;
UPDATE t1 SET b=b*2 WHERE a>=3200 AND a<3210;
UPDATE t1 SET b=b*2 WHERE a>=3210 AND a<3220;
UPDATE t1 SET b=b*2 WHERE a>=3220 AND a<3230;
UPDATE t1 SET b=b*2 WHERE a>=3230 AND a<3240;
UPDATE t1 SET b=b*2 WHERE a>=3240 AND a<3250;
UPDATE t1 SET b=b*2 WHERE a>=3250 AND a<3260;
UPDATE t1 SET b=b*2 WHERE a>=3260 AND a<3270;
UPDATE t1 SET b=b*2 WHERE a>=3270 AND a<3280;
UPDATE t1 SET b=b*2 WHERE a>=3280 AND a<3290;
UPDATE t1 SET b=b*2 WHERE a>=3290 AND a<3300;
UPDATE t1 SET b=b*2 WHERE a>=3300 AND a<3310;
UPDATE t1 SET b=b*2 WHERE a>=3310 AND a<3320;
UPDATE t1 SET b=b*2 WHERE a>=3320 AND a<3330;
UPDATE t1 SET b=b*2 WHERE a>=3330 AND a<3340;
UPDATE t1 SET b=b*2 WHERE a>=3340 AND a<3350;
UPDATE t1 SET b=b*2 WHERE a>=3350 AND a<3360;
UPDATE t1 SET b=b*2 WHERE a>=3360 AND a<3370;
UPDATE t1 SET b=b*2 WHERE a>=3370 AND a<3380;
UPDATE t1 SET b=b*2 WHERE a>=3380 AND a<3390;
UPDATE t1 SET b=b*2 WHERE a>=3390 AND a<3400;
UPDATE t1 SET b=b*2 WHERE a>=3400 AND a<3410;
UPDATE t1 SET b=b*2 WHERE a>=3410 AND a<3420;
UPDATE t1 SET b=b*2 WHERE a>=3420 AND a<3430;
UPDATE t1 SET b=b*2 WHERE a>=3430 AND a<3440;
UPDATE t1 SET b=b*2 WHERE a>=3440 AND a<3450;
UPDATE t1 SET b=b*2 WHERE a>=3450 AND a<3460;
UPDATE t1 SET b=b*2 WHERE a>=3460 AND a<3470;
UPDATE t1 SET b=b*2 WHERE a>=3470 AND a<3480;
UPDATE t1 SET b=b*2 WHERE a>=3480 AND a<3490;
UPDATE t1 SET b=b*2 WHERE a>=3490 AND a<3500;
UPDATE t1 SET b=b*2 WHERE a>=3500 AND a<3510;
UPDATE t1 SET b=b*2 WHERE a>=3510 AND a<3520;
UPDATE t1 SET b=b*2 WHERE a>=3520 AND a<3530;
UPDATE t1 SET b=b*2 WHERE a>=3530 AND a<3540;
UPDATE t1 SET b=b*2 WHERE a>=3540 AND a<3550;
UPDATE t1 SET b=b*2 WHERE a>=3550 AND a<3560;
UPDATE t1 SET b=b*2 WHERE a>=3560 AND a<3570;
UPDATE t1 SET b=b*2 WHERE a>=3570 AND a<3580;
UPDATE t1 SET b=b*2 WHERE a>=3580 AND a<3590;
UPDATE t1 SET b=b*2 WHERE a>=3590 AND a<3600;
UPDATE t1 SET b=b*2 WHERE a>=3600 AND a<3610;
UPDATE t1 SET b=b*2 WHERE a>=3610 AND a<3620;
UPDATE t1 SET b=b*2 WHERE a>=3620 AND a<3630;
UPDATE t1 SET b=b*2 WHERE a>=3630 AND a<3640;
UPDATE t1 SET b=b*2 WHERE a>=3640 AND a<3650;
UPDATE t1 SET b=b*2 WHERE a>=3650 AND a<3660;
UPDATE t1 SET b=b*2 WHERE a>=3660 AND a<3670;
UPDATE t1 SET b=b*2 WHERE a>=3670 AND a<3680;
UPDATE t1 SET b=b*2 WHERE a>=3680 AND a<3690;
UPDATE t1 SET b=b*2 WHERE a>=3690 AND a<3700;
UPDATE t1 SET b=b*2 WHERE a>=3700 AND a<3710;
UPDATE t1 SET b=b*2 WHERE a>=3710 AND a<3720;
UPDATE t1 SET b=b*2 WHERE a>=3720 AND a<3730;
UPDATE t1 SET b=b*2 WHERE a>=3730 AND a<3740;
UPDATE t1 SET b=b*2 WHERE a>=3740 AND a<3750;
UPDATE t1 SET b=b*2 WHERE a>=3750 AND a<3760;
UPDATE t1 SET b=b*2 WHERE a>=3760 AND a<3770;
UPDATE t1 SET b=b*2 WHERE a>=3770 AND a<3780;
UPDATE t1 SET b=b*2 WHERE a>=3780 AND a<3790;
UPDATE t1 SET b=b*2 WHERE a>=3790 AND a<3800;
UPDATE t1 SET b=b*2 WHERE a>=3800 AND a<3810;
UPDATE t1 SET b=b*2 WHERE a>=3810 AND a<3820;
UPDATE t1 SET b=b*2 WHERE a>=3820 AND a<3830;
UPDATE t1 SET b=b*2 WHERE a>=3830 AND a<3840;
UPDATE t1 SET b=b*2 WHERE a>=3840 AND a<3850;
UPDATE t1 SET b=b*2 WHERE a>=3850 AND a<3860;
UPDATE t1 SET b=b*2 WHERE a>=3860 AND a<3870;
UPDATE t1 SET b=b*2 WHERE a>=3870 AND a<3880;
UPDATE t1 SET b=b*2 WHERE a>=3880 AND a<3890;
UPDATE t1 SET b=b*2 WHERE a>=3890 AND a<3900;
UPDATE t1 SET b=b*2 WHERE a>=3900 AND a<3910;
UPDATE t1 SET b=b*2 WHERE a>=3910 AND a<3920;
UPDATE t1 SET b=b*2 WHERE a>=3920 AND a<3930;
UPDATE t1 SET b=b*2 WHERE a>=3930 AND a<3940;
UPDATE t1 SET b=b*2 WHERE a>=3940 AND a<3950;
UPDATE t1 SET b=b*2 WHERE a>=3950 AND a<3960;
UPDATE t1 SET b=b*2 WHERE a>=3960 AND a<3970;
UPDATE t1 SET b=b*2 WHERE a>=3970 AND a<3980;
UPDATE t1 SET b=b*2 WHERE a>=3980 AND a<3990;
UPDATE t1 SET b=b*2 WHERE a>=3990 AND a<4000;
UPDATE t1 SET b=b*2 WHERE a>=4000 AND a<4010;
UPDATE t1 SET b=b*2 WHERE a>=4010 AND a<4020;
UPDATE t1 SET b=b*2 WHERE a>=4020 AND a<4030;
UPDATE t1 SET b=b*2 WHERE a>=4030 AND a<4040;
UPDATE t1 SET b=b*2 WHERE a>=4040 AND a<4050;
UPDATE t1 SET b=b*2 WHERE a>=4050 AND a<4060;
UPDATE t1 SET b=b*2 WHERE a>=4060 AND a<4070;
UPDATE t1 SET b=b*2 WHERE a>=4070 AND a<4080;
UPDATE t1 SET b=b*2 WHERE a>=4080 AND a<4090;
UPDATE t1 SET b=b*2 WHERE a>=4090 AND a<4100;
UPDATE t1 SET b=b*2 WHERE a>=4100 AND a<4110;
UPDATE t1 SET b=b*2 WHERE a>=4110 AND a<4120;
UPDATE t1 SET b=b*2 WHERE a>=4120 AND a<4130;
UPDATE t1 SET b=b*2 WHERE a>=4130 AND a<4140;
UPDATE t1 SET b=b*2 WHERE a>=4140 AND a<4150;
UPDATE t1 SET b=b*2 WHERE a>=4150 AND a<4160;
UPDATE t1 SET b=b*2 WHERE a>=4160 AND a<4170;
UPDATE t1 SET b=b*2 WHERE a>=4170 AND a<4180;
UPDATE t1 SET b=b*2 WHERE a>=4180 AND a<4190;
UPDATE t1 SET b=b*2 WHERE a>=4190 AND a<4200;
UPDATE t1 SET b=b*2 WHERE a>=4200 AND a<4210;
UPDATE t1 SET b=b*2 WHERE a>=4210 AND a<4220;
UPDATE t1 SET b=b*2 WHERE a>=4220 AND a<4230;
UPDATE t1 SET b=b*2 WHERE a>=4230 AND a<4240;
UPDATE t1 SET b=b*2 WHERE a>=4240 AND a<4250;
UPDATE t1 SET b=b*2 WHERE a>=4250 AND a<4260;
UPDATE t1 SET b=b*2 WHERE a>=4260 AND a<4270;
UPDATE t1 SET b=b*2 WHERE a>=4270 AND a<4280;
UPDATE t1 SET b=b*2 WHERE a>=4280 AND a<4290;
UPDATE t1 SET b=b*2 WHERE a>=4290 AND a<4300;
UPDATE t1 SET b=b*2 WHERE a>=4300 AND a<4310;
UPDATE t1 SET b=b*2 WHERE a>=4310 AND a<4320;
UPDATE t1 SET b=b*2 WHERE a>=4320 AND a<4330;
UPDATE t1 SET b=b*2 WHERE a>=4330 AND a<4340;
UPDATE t1 SET b=b*2 WHERE a>=4340 AND a<4350;
UPDATE t1 SET b=b*2 WHERE a>=4350 AND a<4360;
UPDATE t1 SET b=b*2 WHERE a>=4360 AND a<4370;
UPDATE t1 SET b=b*2 WHERE a>=4370 AND a<4380;
UPDATE t1 SET b=b*2 WHERE a>=4380 AND a<4390;
UPDATE t1 SET b=b*2 WHERE a>=4390 AND a<4400;
UPDATE t1 SET b=b*2 WHERE a>=4400 AND a<4410;
UPDATE t1 SET b=b*2 WHERE a>=4410 AND a<4420;
UPDATE t1 SET b=b*2 WHERE a>=4420 AND a<4430;
UPDATE t1 SET b=b*2 WHERE a>=4430 AND a<4440;
UPDATE t1 SET b=b*2 WHERE a>=4440 AND a<4450;
UPDATE t1 SET b=b*2 WHERE a>=4450 AND a<4460;
UPDATE t1 SET b=b*2 WHERE a>=4460 AND a<4470;
UPDATE t1 SET b=b*2 WHERE a>=4470 AND a<4480;
UPDATE t1 SET b=b*2 WHERE a>=4480 AND a<4490;
UPDATE t1 SET b=b*2 WHERE a>=4490 AND a<4500;
UPDATE t1 SET b=b*2 WHERE a>=4500 AND a<4510;
UPDATE t1 SET b=b*2 WHERE a>=4510 AND a<4520;
UPDATE t1 SET b=b*2 WHERE a>=4520 AND a<4530;
UPDATE t1 SET b=b*2 WHERE a>=4530 AND a<4540;
UPDATE t1 SET b=b*2 WHERE a>=4540 AND a<4550;
UPDATE t1 SET b=b*2 WHERE a>=4550 AND a<4560;
UPDATE t1 SET b=b*2 WHERE a>=4560 AND a<4570;
UPDATE t1 SET b=b*2 WHERE a>=4570 AND a<4580;
UPDATE t1 SET b=b*2 WHERE a>=4580 AND a<4590;
UPDATE t1 SET b=b*2 WHERE a>=4590 AND a<4600;
UPDATE t1 SET b=b*2 WHERE a>=4600 AND a<4610;
UPDATE t1 SET b=b*2 WHERE a>=4610 AND a<4620;
UPDATE t1 SET b=b*2 WHERE a>=4620 AND a<4630;
UPDATE t1 SET b=b*2 WHERE a>=4630 AND a<4640;
UPDATE t1 SET b=b*2 WHERE a>=4640 AND a<4650;
UPDATE t1 SET b=b*2 WHERE a>=4650 AND a<4660;
UPDATE t1 SET b=b*2 WHERE a>=4660 AND a<4670;
UPDATE t1 SET b=b*2 WHERE a>=4670 AND a<4680;
UPDATE t1 SET b=b*2 WHERE a>=4680 AND a<4690;
UPDATE t1 SET b=b*2 WHERE a>=4690 AND a<4700;
UPDATE t1 SET b=b*2 WHERE a>=4700 AND a<4710;
UPDATE t1 SET b=b*2 WHERE a>=4710 AND a<4720;
UPDATE t1 SET b=b*2 WHERE a>=4720 AND a<4730;
UPDATE t1 SET b=b*2 WHERE a>=4730 AND a<4740;
UPDATE t1 SET b=b*2 WHERE a>=4740 AND a<4750;
UPDATE t1 SET b=b*2 WHERE a>=4750 AND a<4760;
UPDATE t1 SET b=b*2 WHERE a>=4760 AND a<4770;
UPDATE t1 SET b=b*2 WHERE a>=4770 AND a<4780;
UPDATE t1 SET b=b*2 WHERE a>=4780 AND a<4790;
UPDATE t1 SET b=b*2 WHERE a>=4790 AND a<4800;
UPDATE t1 SET b=b*2 WHERE a>=4800 AND a<4810;
UPDATE t1 SET b=b*2 WHERE a>=4810 AND a<4820;
UPDATE t1 SET b=b*2 WHERE a>=4820 AND a<4830;
UPDATE t1 SET b=b*2 WHERE a>=4830 AND a<4840;
UPDATE t1 SET b=b*2 WHERE a>=4840 AND a<4850;
UPDATE t1 SET b=b*2 WHERE a>=4850 AND a<4860;
UPDATE t1 SET b=b*2 WHERE a>=4860 AND a<4870;
UPDATE t1 SET b=b*2 WHERE a>=4870 AND a<4880;
UPDATE t1 SET b=b*2 WHERE a>=4880 AND a<4890;
UPDATE t1 SET b=b*2 WHERE a>=4890 AND a<4900;
UPDATE t1 SET b=b*2 WHERE a>=4900 AND a<4910;
UPDATE t1 SET b=b*2 WHERE a>=4910 AND a<4920;
UPDATE t1 SET b=b*2 WHERE a>=4920 AND a<4930;
UPDATE t1 SET b=b*2 WHERE a>=4930 AND a<4940;
UPDATE t1 SET b=b*2 WHERE a>=4940 AND a<4950;
UPDATE t1 SET b=b*2 WHERE a>=4950 AND a<4960;
UPDATE t1 SET b=b*2 WHERE a>=4960 AND a<4970;
UPDATE t1 SET b=b*2 WHERE a>=4970 AND a<4980;
UPDATE t1 SET b=b*2 WHERE a>=4980 AND a<4990;
UPDATE t1 SET b=b*2 WHERE a>=4990 AND a<5000;
UPDATE t1 SET b=b*2 WHERE a>=5000 AND a<5010;
UPDATE t1 SET b=b*2 WHERE a>=5010 AND a<5020;
UPDATE t1 SET b=b*2 WHERE a>=5020 AND a<5030;
UPDATE t1 SET b=b*2 WHERE a>=5030 AND a<5040;
UPDATE t1 SET b=b*2 WHERE a>=5040 AND a<5050;
UPDATE t1 SET b=b*2 WHERE a>=5050 AND a<5060;
UPDATE t1 SET b=b*2 WHERE a>=5060 AND a<5070;
UPDATE t1 SET b=b*2 WHERE a>=5070 AND a<5080;
UPDATE t1 SET b=b*2 WHERE a>=5080 AND a<5090;
UPDATE t1 SET b=b*2 WHERE a>=5090 AND a<5100;
UPDATE t1 SET b=b*2 WHERE a>=5100 AND a<5110;
UPDATE t1 SET b=b*2 WHERE a>=5110 AND a<5120;
UPDATE t1 SET b=b*2 WHERE a>=5120 AND a<5130;
UPDATE t1 SET b=b*2 WHERE a>=5130 AND a<5140;
UPDATE t1 SET b=b*2 WHERE a>=5140 AND a<5150;
UPDATE t1 SET b=b*2 WHERE a>=5150 AND a<5160;
UPDATE t1 SET b=b*2 WHERE a>=5160 AND a<5170;
UPDATE t1 SET b=b*2 WHERE a>=5170 AND a<5180;
UPDATE t1 SET b=b*2 WHERE a>=5180 AND a<5190;
UPDATE t1 SET b=b*2 WHERE a>=5190 AND a<5200;
UPDATE t1 SET b=b*2 WHERE a>=5200 AND a<5210;
UPDATE t1 SET b=b*2 WHERE a>=5210 AND a<5220;
UPDATE t1 SET b=b*2 WHERE a>=5220 AND a<5230;
UPDATE t1 SET b=b*2 WHERE a>=5230 AND a<5240;
UPDATE t1 SET b=b*2 WHERE a>=5240 AND a<5250;
UPDATE t1 SET b=b*2 WHERE a>=5250 AND a<5260;
UPDATE t1 SET b=b*2 WHERE a>=5260 AND a<5270;
UPDATE t1 SET b=b*2 WHERE a>=5270 AND a<5280;
UPDATE t1 SET b=b*2 WHERE a>=5280 AND a<5290;
UPDATE t1 SET b=b*2 WHERE a>=5290 AND a<5300;
UPDATE t1 SET b=b*2 WHERE a>=5300 AND a<5310;
UPDATE t1 SET b=b*2 WHERE a>=5310 AND a<5320;
UPDATE t1 SET b=b*2 WHERE a>=5320 AND a<5330;
UPDATE t1 SET b=b*2 WHERE a>=5330 AND a<5340;
UPDATE t1 SET b=b*2 WHERE a>=5340 AND a<5350;
UPDATE t1 SET b=b*2 WHERE a>=5350 AND a<5360;
UPDATE t1 SET b=b*2 WHERE a>=5360 AND a<5370;
UPDATE t1 SET b=b*2 WHERE a>=5370 AND a<5380;
UPDATE t1 SET b=b*2 WHERE a>=5380 AND a<5390;
UPDATE t1 SET b=b*2 WHERE a>=5390 AND a<5400;
UPDATE t1 SET b=b*2 WHERE a>=5400 AND a<5410;
UPDATE t1 SET b=b*2 WHERE a>=5410 AND a<5420;
UPDATE t1 SET b=b*2 WHERE a>=5420 AND a<5430;
UPDATE t1 SET b=b*2 WHERE a>=5430 AND a<5440;
UPDATE t1 SET b=b*2 WHERE a>=5440 AND a<5450;
UPDATE t1 SET b=b*2 WHERE a>=5450 AND a<5460;
UPDATE t1 SET b=b*2 WHERE a>=5460 AND a<5470;
UPDATE t1 SET b=b*2 WHERE a>=5470 AND a<5480;
UPDATE t1 SET b=b*2 WHERE a>=5480 AND a<5490;
UPDATE t1 SET b=b*2 WHERE a>=5490 AND a<5500;
UPDATE t1 SET b=b*2 WHERE a>=5500 AND a<5510;
UPDATE t1 SET b=b*2 WHERE a>=5510 AND a<5520;
UPDATE t1 SET b=b*2 WHERE a>=5520 AND a<5530;
UPDATE t1 SET b=b*2 WHERE a>=5530 AND a<5540;
UPDATE t1 SET b=b*2 WHERE a>=5540 AND a<5550;
UPDATE t1 SET b=b*2 WHERE a>=5550 AND a<5560;
UPDATE t1 SET b=b*2 WHERE a>=5560 AND a<5570;
UPDATE t1 SET b=b*2 WHERE a>=5570 AND a<5580;
UPDATE t1 SET b=b*2 WHERE a>=5580 AND a<5590;
UPDATE t1 SET b=b*2 WHERE a>=5590 AND a<5600;
UPDATE t1 SET b=b*2 WHERE a>=5600 AND a<5610;
UPDATE t1 SET b=b*2 WHERE a>=5610 AND a<5620;
UPDATE t1 SET b=b*2 WHERE a>=5620 AND a<5630;
UPDATE t1 SET b=b*2 WHERE a>=5630 AND a<5640;
UPDATE t1 SET b=b*2 WHERE a>=5640 AND a<5650;
UPDATE t1 SET b=b*2 WHERE a>=5650 AND a<5660;
UPDATE t1 SET b=b*2 WHERE a>=5660 AND a<5670;
UPDATE t1 SET b=b*2 WHERE a>=5670 AND a<5680;
UPDATE t1 SET b=b*2 WHERE a>=5680 AND a<5690;
UPDATE t1 SET b=b*2 WHERE a>=5690 AND a<5700;
UPDATE t1 SET b=b*2 WHERE a>=5700 AND a<5710;
UPDATE t1 SET b=b*2 WHERE a>=5710 AND a<5720;
UPDATE t1 SET b=b*2 WHERE a>=5720 AND a<5730;
UPDATE t1 SET b=b*2 WHERE a>=5730 AND a<5740;
UPDATE t1 SET b=b*2 WHERE a>=5740 AND a<5750;
UPDATE t1 SET b=b*2 WHERE a>=5750 AND a<5760;
UPDATE t1 SET b=b*2 WHERE a>=5760 AND a<5770;
UPDATE t1 SET b=b*2 WHERE a>=5770 AND a<5780;
UPDATE t1 SET b=b*2 WHERE a>=5780 AND a<5790;
UPDATE t1 SET b=b*2 WHERE a>=5790 AND a<5800;
UPDATE t1 SET b=b*2 WHERE a>=5800 AND a<5810;
UPDATE t1 SET b=b*2 WHERE a>=5810 AND a<5820;
UPDATE t1 SET b=b*2 WHERE a>=5820 AND a<5830;
UPDATE t1 SET b=b*2 WHERE a>=5830 AND a<5840;
UPDATE t1 SET b=b*2 WHERE a>=5840 AND a<5850;
UPDATE t1 SET b=b*2 WHERE a>=5850 AND a<5860;
UPDATE t1 SET b=b*2 WHERE a>=5860 AND a<5870;
UPDATE t1 SET b=b*2 WHERE a>=5870 AND a<5880;
UPDATE t1 SET b=b*2 WHERE a>=5880 AND a<5890;
UPDATE t1 SET b=b*2 WHERE a>=5890 AND a<5900;
UPDATE t1 SET b=b*2 WHERE a>=5900 AND a<5910;
UPDATE t1 SET b=b*2 WHERE a>=5910 AND a<5920;
UPDATE t1 SET b=b*2 WHERE a>=5920 AND a<5930;
UPDATE t1 SET b=b*2 WHERE a>=5930 AND a<5940;
UPDATE t1 SET b=b*2 WHERE a>=5940 AND a<5950;
UPDATE t1 SET b=b*2 WHERE a>=5950 AND a<5960;
UPDATE t1 SET b=b*2 WHERE a>=5960 AND a<5970;
UPDATE t1 SET b=b*2 WHERE a>=5970 AND a<5980;
UPDATE t1 SET b=b*2 WHERE a>=5980 AND a<5990;
UPDATE t1 SET b=b*2 WHERE a>=5990 AND a<6000;
UPDATE t1 SET b=b*2 WHERE a>=6000 AND a<6010;
UPDATE t1 SET b=b*2 WHERE a>=6010 AND a<6020;
UPDATE t1 SET b=b*2 WHERE a>=6020 AND a<6030;
UPDATE t1 SET b=b*2 WHERE a>=6030 AND a<6040;
UPDATE t1 SET b=b*2 WHERE a>=6040 AND a<6050;
UPDATE t1 SET b=b*2 WHERE a>=6050 AND a<6060;
UPDATE t1 SET b=b*2 WHERE a>=6060 AND a<6070;
UPDATE t1 SET b=b*2 WHERE a>=6070 AND a<6080;
UPDATE t1 SET b=b*2 WHERE a>=6080 AND a<6090;
UPDATE t1 SET b=b*2 WHERE a>=6090 AND a<6100;
UPDATE t1 SET b=b*2 WHERE a>=6100 AND a<6110;
UPDATE t1 SET b=b*2 WHERE a>=6110 AND a<6120;
UPDATE t1 SET b=b*2 WHERE a>=6120 AND a<6130;
UPDATE t1 SET b=b*2 WHERE a>=6130 AND a<6140;
UPDATE t1 SET b=b*2 WHERE a>=6140 AND a<6150;
UPDATE t1 SET b=b*2 WHERE a>=6150 AND a<6160;
UPDATE t1 SET b=b*2 WHERE a>=6160 AND a<6170;
UPDATE t1 SET b=b*2 WHERE a>=6170 AND a<6180;
UPDATE t1 SET b=b*2 WHERE a>=6180 AND a<6190;
UPDATE t1 SET b=b*2 WHERE a>=6190 AND a<6200;
UPDATE t1 SET b=b*2 WHERE a>=6200 AND a<6210;
UPDATE t1 SET b=b*2 WHERE a>=6210 AND a<6220;
UPDATE t1 SET b=b*2 WHERE a>=6220 AND a<6230;
UPDATE t1 SET b=b*2 WHERE a>=6230 AND a<6240;
UPDATE t1 SET b=b*2 WHERE a>=6240 AND a<6250;
UPDATE t1 SET b=b*2 WHERE a>=6250 AND a<6260;
UPDATE t1 SET b=b*2 WHERE a>=6260 AND a<6270;
UPDATE t1 SET b=b*2 WHERE a>=6270 AND a<6280;
UPDATE t1 SET b=b*2 WHERE a>=6280 AND a<6290;
UPDATE t1 SET b=b*2 WHERE a>=6290 AND a<6300;
UPDATE t1 SET b=b*2 WHERE a>=6300 AND a<6310;
UPDATE t1 SET b=b*2 WHERE a>=6310 AND a<6320;
UPDATE t1 SET b=b*2 WHERE a>=6320 AND a<6330;
UPDATE t1 SET b=b*2 WHERE a>=6330 AND a<6340;
UPDATE t1 SET b=b*2 WHERE a>=6340 AND a<6350;
UPDATE t1 SET b=b*2 WHERE a>=6350 AND a<6360;
UPDATE t1 SET b=b*2 WHERE a>=6360 AND a<6370;
UPDATE t1 SET b=b*2 WHERE a>=6370 AND a<6380;
UPDATE t1 SET b=b*2 WHERE a>=6380 AND a<6390;
UPDATE t1 SET b=b*2 WHERE a>=6390 AND a<6400;
UPDATE t1 SET b=b*2 WHERE a>=6400 AND a<6410;
UPDATE t1 SET b=b*2 WHERE a>=6410 AND a<6420;
UPDATE t1 SET b=b*2 WHERE a>=6420 AND a<6430;
UPDATE t1 SET b=b*2 WHERE a>=6430 AND a<6440;
UPDATE t1 SET b=b*2 WHERE a>=6440 AND a<6450;
UPDATE t1 SET b=b*2 WHERE a>=6450 AND a<6460;
UPDATE t1 SET b=b*2 WHERE a>=6460 AND a<6470;
UPDATE t1 SET b=b*2 WHERE a>=6470 AND a<6480;
UPDATE t1 SET b=b*2 WHERE a>=6480 AND a<6490;
UPDATE t1 SET b=b*2 WHERE a>=6490 AND a<6500;
UPDATE t1 SET b=b*2 WHERE a>=6500 AND a<6510;
UPDATE t1 SET b=b*2 WHERE a>=6510 AND a<6520;
UPDATE t1 SET b=b*2 WHERE a>=6520 AND a<6530;
UPDATE t1 SET b=b*2 WHERE a>=6530 AND a<6540;
UPDATE t1 SET b=b*2 WHERE a>=6540 AND a<6550;
UPDATE t1 SET b=b*2 WHERE a>=6550 AND a<6560;
UPDATE t1 SET b=b*2 WHERE a>=6560 AND a<6570;
UPDATE t1 SET b=b*2 WHERE a>=6570 AND a<6580;
UPDATE t1 SET b=b*2 WHERE a>=6580 AND a<6590;
UPDATE t1 SET b=b*2 WHERE a>=6590 AND a<6600;
UPDATE t1 SET b=b*2 WHERE a>=6600 AND a<6610;
UPDATE t1 SET b=b*2 WHERE a>=6610 AND a<6620;
UPDATE t1 SET b=b*2 WHERE a>=6620 AND a<6630;
UPDATE t1 SET b=b*2 WHERE a>=6630 AND a<6640;
UPDATE t1 SET b=b*2 WHERE a>=6640 AND a<6650;
UPDATE t1 SET b=b*2 WHERE a>=6650 AND a<6660;
UPDATE t1 SET b=b*2 WHERE a>=6660 AND a<6670;
UPDATE t1 SET b=b*2 WHERE a>=6670 AND a<6680;
UPDATE t1 SET b=b*2 WHERE a>=6680 AND a<6690;
UPDATE t1 SET b=b*2 WHERE a>=6690 AND a<6700;
UPDATE t1 SET b=b*2 WHERE a>=6700 AND a<6710;
UPDATE t1 SET b=b*2 WHERE a>=6710 AND a<6720;
UPDATE t1 SET b=b*2 WHERE a>=6720 AND a<6730;
UPDATE t1 SET b=b*2 WHERE a>=6730 AND a<6740;
UPDATE t1 SET b=b*2 WHERE a>=6740 AND a<6750;
UPDATE t1 SET b=b*2 WHERE a>=6750 AND a<6760;
UPDATE t1 SET b=b*2 WHERE a>=6760 AND a<6770;
UPDATE t1 SET b=b*2 WHERE a>=6770 AND a<6780;
UPDATE t1 SET b=b*2 WHERE a>=6780 AND a<6790;
UPDATE t1 SET b=b*2 WHERE a>=6790 AND a<6800;
UPDATE t1 SET b=b*2 WHERE a>=6800 AND a<6810;
UPDATE t1 SET b=b*2 WHERE a>=6810 AND a<6820;
UPDATE t1 SET b=b*2 WHERE a>=6820 AND a<6830;
UPDATE t1 SET b=b*2 WHERE a>=6830 AND a<6840;
UPDATE t1 SET b=b*2 WHERE a>=6840 AND a<6850;
UPDATE t1 SET b=b*2 WHERE a>=6850 AND a<6860;
UPDATE t1 SET b=b*2 WHERE a>=6860 AND a<6870;
UPDATE t1 SET b=b*2 WHERE a>=6870 AND a<6880;
UPDATE t1 SET b=b*2 WHERE a>=6880 AND a<6890;
UPDATE t1 SET b=b*2 WHERE a>=6890 AND a<6900;
UPDATE t1 SET b=b*2 WHERE a>=6900 AND a<6910;
UPDATE t1 SET b=b*2 WHERE a>=6910 AND a<6920;
UPDATE t1 SET b=b*2 WHERE a>=6920 AND a<6930;
UPDATE t1 SET b=b*2 WHERE a>=6930 AND a<6940;
UPDATE t1 SET b=b*2 WHERE a>=6940 AND a<6950;
UPDATE t1 SET b=b*2 WHERE a>=6950 AND a<6960;
UPDATE t1 SET b=b*2 WHERE a>=6960 AND a<6970;
UPDATE t1 SET b=b*2 WHERE a>=6970 AND a<6980;
UPDATE t1 SET b=b*2 WHERE a>=6980 AND a<6990;
UPDATE t1 SET b=b*2 WHERE a>=6990 AND a<7000;
UPDATE t1 SET b=b*2 WHERE a>=7000 AND a<7010;
UPDATE t1 SET b=b*2 WHERE a>=7010 AND a<7020;
UPDATE t1 SET b=b*2 WHERE a>=7020 AND a<7030;
UPDATE t1 SET b=b*2 WHERE a>=7030 AND a<7040;
UPDATE t1 SET b=b*2 WHERE a>=7040 AND a<7050;
UPDATE t1 SET b=b*2 WHERE a>=7050 AND a<7060;
UPDATE t1 SET b=b*2 WHERE a>=7060 AND a<7070;
UPDATE t1 SET b=b*2 WHERE a>=7070 AND a<7080;
UPDATE t1 SET b=b*2 WHERE a>=7080 AND a<7090;
UPDATE t1 SET b=b*2 WHERE a>=7090 AND a<7100;
UPDATE t1 SET b=b*2 WHERE a>=7100 AND a<7110;
UPDATE t1 SET b=b*2 WHERE a>=7110 AND a<7120;
UPDATE t1 SET b=b*2 WHERE a>=7120 AND a<7130;
UPDATE t1 SET b=b*2 WHERE a>=7130 AND a<7140;
UPDATE t1 SET b=b*2 WHERE a>=7140 AND a<7150;
UPDATE t1 SET b=b*2 WHERE a>=7150 AND a<7160;
UPDATE t1 SET b=b*2 WHERE a>=7160 AND a<7170;
UPDATE t1 SET b=b*2 WHERE a>=7170 AND a<7180;
UPDATE t1 SET b=b*2 WHERE a>=7180 AND a<7190;
UPDATE t1 SET b=b*2 WHERE a>=7190 AND a<7200;
UPDATE t1 SET b=b*2 WHERE a>=7200 AND a<7210;
UPDATE t1 SET b=b*2 WHERE a>=7210 AND a<7220;
UPDATE t1 SET b=b*2 WHERE a>=7220 AND a<7230;
UPDATE t1 SET b=b*2 WHERE a>=7230 AND a<7240;
UPDATE t1 SET b=b*2 WHERE a>=7240 AND a<7250;
UPDATE t1 SET b=b*2 WHERE a>=7250 AND a<7260;
UPDATE t1 SET b=b*2 WHERE a>=7260 AND a<7270;
UPDATE t1 SET b=b*2 WHERE a>=7270 AND a<7280;
UPDATE t1 SET b=b*2 WHERE a>=7280 AND a<7290;
UPDATE t1 SET b=b*2 WHERE a>=7290 AND a<7300;
UPDATE t1 SET b=b*2 WHERE a>=7300 AND a<7310;
UPDATE t1 SET b=b*2 WHERE a>=7310 AND a<7320;
UPDATE t1 SET b=b*2 WHERE a>=7320 AND a<7330;
UPDATE t1 SET b=b*2 WHERE a>=7330 AND a<7340;
UPDATE t1 SET b=b*2 WHERE a>=7340 AND a<7350;
UPDATE t1 SET b=b*2 WHERE a>=7350 AND a<7360;
UPDATE t1 SET b=b*2 WHERE a>=7360 AND a<7370;
UPDATE t1 SET b=b*2 WHERE a>=7370 AND a<7380;
UPDATE t1 SET b=b*2 WHERE a>=7380 AND a<7390;
UPDATE t1 SET b=b*2 WHERE a>=7390 AND a<7400;
UPDATE t1 SET b=b*2 WHERE a>=7400 AND a<7410;
UPDATE t1 SET b=b*2 WHERE a>=7410 AND a<7420;
UPDATE t1 SET b=b*2 WHERE a>=7420 AND a<7430;
UPDATE t1 SET b=b*2 WHERE a>=7430 AND a<7440;
UPDATE t1 SET b=b*2 WHERE a>=7440 AND a<7450;
UPDATE t1 SET b=b*2 WHERE a>=7450 AND a<7460;
UPDATE t1 SET b=b*2 WHERE a>=7460 AND a<7470;
UPDATE t1 SET b=b*2 WHERE a>=7470 AND a<7480;
UPDATE t1 SET b=b*2 WHERE a>=7480 AND a<7490;
UPDATE t1 SET b=b*2 WHERE a>=7490 AND a<7500;
UPDATE t1 SET b=b*2 WHERE a>=7500 AND a<7510;
UPDATE t1 SET b=b*2 WHERE a>=7510 AND a<7520;
UPDATE t1 SET b=b*2 WHERE a>=7520 AND a<7530;
UPDATE t1 SET b=b*2 WHERE a>=7530 AND a<7540;
UPDATE t1 SET b=b*2 WHERE a>=7540 AND a<7550;
UPDATE t1 SET b=b*2 WHERE a>=7550 AND a<7560;
UPDATE t1 SET b=b*2 WHERE a>=7560 AND a<7570;
UPDATE t1 SET b=b*2 WHERE a>=7570 AND a<7580;
UPDATE t1 SET b=b*2 WHERE a>=7580 AND a<7590;
UPDATE t1 SET b=b*2 WHERE a>=7590 AND a<7600;
UPDATE t1 SET b=b*2 WHERE a>=7600 AND a<7610;
UPDATE t1 SET b=b*2 WHERE a>=7610 AND a<7620;
UPDATE t1 SET b=b*2 WHERE a>=7620 AND a<7630;
UPDATE t1 SET b=b*2 WHERE a>=7630 AND a<7640;
UPDATE t1 SET b=b*2 WHERE a>=7640 AND a<7650;
UPDATE t1 SET b=b*2 WHERE a>=7650 AND a<7660;
UPDATE t1 SET b=b*2 WHERE a>=7660 AND a<7670;
UPDATE t1 SET b=b*2 WHERE a>=7670 AND a<7680;
UPDATE t1 SET b=b*2 WHERE a>=7680 AND a<7690;
UPDATE t1 SET b=b*2 WHERE a>=7690 AND a<7700;
UPDATE t1 SET b=b*2 WHERE a>=7700 AND a<7710;
UPDATE t1 SET b=b*2 WHERE a>=7710 AND a<7720;
UPDATE t1 SET b=b*2 WHERE a>=7720 AND a<7730;
UPDATE t1 SET b=b*2 WHERE a>=7730 AND a<7740;
UPDATE t1 SET b=b*2 WHERE a>=7740 AND a<7750;
UPDATE t1 SET b=b*2 WHERE a>=7750 AND a<7760;
UPDATE t1 SET b=b*2 WHERE a>=7760 AND a<7770;
UPDATE t1 SET b=b*2 WHERE a>=7770 AND a<7780;
UPDATE t1 SET b=b*2 WHERE a>=7780 AND a<7790;
UPDATE t1 SET b=b*2 WHERE a>=7790 AND a<7800;
UPDATE t1 SET b=b*2 WHERE a>=7800 AND a<7810;
UPDATE t1 SET b=b*2 WHERE a>=7810 AND a<7820;
UPDATE t1 SET b=b*2 WHERE a>=7820 AND a<7830;
UPDATE t1 SET b=b*2 WHERE a>=7830 AND a<7840;
UPDATE t1 SET b=b*2 WHERE a>=7840 AND a<7850;
UPDATE t1 SET b=b*2 WHERE a>=7850 AND a<7860;
UPDATE t1 SET b=b*2 WHERE a>=7860 AND a<7870;
UPDATE t1 SET b=b*2 WHERE a>=7870 AND a<7880;
UPDATE t1 SET b=b*2 WHERE a>=7880 AND a<7890;
UPDATE t1 SET b=b*2 WHERE a>=7890 AND a<7900;
UPDATE t1 SET b=b*2 WHERE a>=7900 AND a<7910;
UPDATE t1 SET b=b*2 WHERE a>=7910 AND a<7920;
UPDATE t1 SET b=b*2 WHERE a>=7920 AND a<7930;
UPDATE t1 SET b=b*2 WHERE a>=7930 AND a<7940;
UPDATE t1 SET b=b*2 WHERE a>=7940 AND a<7950;
UPDATE t1 SET b=b*2 WHERE a>=7950 AND a<7960;
UPDATE t1 SET b=b*2 WHERE a>=7960 AND a<7970;
UPDATE t1 SET b=b*2 WHERE a>=7970 AND a<7980;
UPDATE t1 SET b=b*2 WHERE a>=7980 AND a<7990;
UPDATE t1 SET b=b*2 WHERE a>=7990 AND a<8000;
UPDATE t1 SET b=b*2 WHERE a>=8000 AND a<8010;
UPDATE t1 SET b=b*2 WHERE a>=8010 AND a<8020;
UPDATE t1 SET b=b*2 WHERE a>=8020 AND a<8030;
UPDATE t1 SET b=b*2 WHERE a>=8030 AND a<8040;
UPDATE t1 SET b=b*2 WHERE a>=8040 AND a<8050;
UPDATE t1 SET b=b*2 WHERE a>=8050 AND a<8060;
UPDATE t1 SET b=b*2 WHERE a>=8060 AND a<8070;
UPDATE t1 SET b=b*2 WHERE a>=8070 AND a<8080;
UPDATE t1 SET b=b*2 WHERE a>=8080 AND a<8090;
UPDATE t1 SET b=b*2 WHERE a>=8090 AND a<8100;
UPDATE t1 SET b=b*2 WHERE a>=8100 AND a<8110;
UPDATE t1 SET b=b*2 WHERE a>=8110 AND a<8120;
UPDATE t1 SET b=b*2 WHERE a>=8120 AND a<8130;
UPDATE t1 SET b=b*2 WHERE a>=8130 AND a<8140;
UPDATE t1 SET b=b*2 WHERE a>=8140 AND a<8150;
UPDATE t1 SET b=b*2 WHERE a>=8150 AND a<8160;
UPDATE t1 SET b=b*2 WHERE a>=8160 AND a<8170;
UPDATE t1 SET b=b*2 WHERE a>=8170 AND a<8180;
UPDATE t1 SET b=b*2 WHERE a>=8180 AND a<8190;
UPDATE t1 SET b=b*2 WHERE a>=8190 AND a<8200;
UPDATE t1 SET b=b*2 WHERE a>=8200 AND a<8210;
UPDATE t1 SET b=b*2 WHERE a>=8210 AND a<8220;
UPDATE t1 SET b=b*2 WHERE a>=8220 AND a<8230;
UPDATE t1 SET b=b*2 WHERE a>=8230 AND a<8240;
UPDATE t1 SET b=b*2 WHERE a>=8240 AND a<8250;
UPDATE t1 SET b=b*2 WHERE a>=8250 AND a<8260;
UPDATE t1 SET b=b*2 WHERE a>=8260 AND a<8270;
UPDATE t1 SET b=b*2 WHERE a>=8270 AND a<8280;
UPDATE t1 SET b=b*2 WHERE a>=8280 AND a<8290;
UPDATE t1 SET b=b*2 WHERE a>=8290 AND a<8300;
UPDATE t1 SET b=b*2 WHERE a>=8300 AND a<8310;
UPDATE t1 SET b=b*2 WHERE a>=8310 AND a<8320;
UPDATE t1 SET b=b*2 WHERE a>=8320 AND a<8330;
UPDATE t1 SET b=b*2 WHERE a>=8330 AND a<8340;
UPDATE t1 SET b=b*2 WHERE a>=8340 AND a<8350;
UPDATE t1 SET b=b*2 WHERE a>=8350 AND a<8360;
UPDATE t1 SET b=b*2 WHERE a>=8360 AND a<8370;
UPDATE t1 SET b=b*2 WHERE a>=8370 AND a<8380;
UPDATE t1 SET b=b*2 WHERE a>=8380 AND a<8390;
UPDATE t1 SET b=b*2 WHERE a>=8390 AND a<8400;
UPDATE t1 SET b=b*2 WHERE a>=8400 AND a<8410;
UPDATE t1 SET b=b*2 WHERE a>=8410 AND a<8420;
UPDATE t1 SET b=b*2 WHERE a>=8420 AND a<8430;
UPDATE t1 SET b=b*2 WHERE a>=8430 AND a<8440;
UPDATE t1 SET b=b*2 WHERE a>=8440 AND a<8450;
UPDATE t1 SET b=b*2 WHERE a>=8450 AND a<8460;
UPDATE t1 SET b=b*2 WHERE a>=8460 AND a<8470;
UPDATE t1 SET b=b*2 WHERE a>=8470 AND a<8480;
UPDATE t1 SET b=b*2 WHERE a>=8480 AND a<8490;
UPDATE t1 SET b=b*2 WHERE a>=8490 AND a<8500;
UPDATE t1 SET b=b*2 WHERE a>=8500 AND a<8510;
UPDATE t1 SET b=b*2 WHERE a>=8510 AND a<8520;
UPDATE t1 SET b=b*2 WHERE a>=8520 AND a<8530;
UPDATE t1 SET b=b*2 WHERE a>=8530 AND a<8540;
UPDATE t1 SET b=b*2 WHERE a>=8540 AND a<8550;
UPDATE t1 SET b=b*2 WHERE a>=8550 AND a<8560;
UPDATE t1 SET b=b*2 WHERE a>=8560 AND a<8570;
UPDATE t1 SET b=b*2 WHERE a>=8570 AND a<8580;
UPDATE t1 SET b=b*2 WHERE a>=8580 AND a<8590;
UPDATE t1 SET b=b*2 WHERE a>=8590 AND a<8600;
UPDATE t1 SET b=b*2 WHERE a>=8600 AND a<8610;
UPDATE t1 SET b=b*2 WHERE a>=8610 AND a<8620;
UPDATE t1 SET b=b*2 WHERE a>=8620 AND a<8630;
UPDATE t1 SET b=b*2 WHERE a>=8630 AND a<8640;
UPDATE t1 SET b=b*2 WHERE a>=8640 AND a<8650;
UPDATE t1 SET b=b*2 WHERE a>=8650 AND a<8660;
UPDATE t1 SET b=b*2 WHERE a>=8660 AND a<8670;
UPDATE t1 SET b=b*2 WHERE a>=8670 AND a<8680;
UPDATE t1 SET b=b*2 WHERE a>=8680 AND a<8690;
UPDATE t1 SET b=b*2 WHERE a>=8690 AND a<8700;
UPDATE t1 SET b=b*2 WHERE a>=8700 AND a<8710;
UPDATE t1 SET b=b*2 WHERE a>=8710 AND a<8720;
UPDATE t1 SET b=b*2 WHERE a>=8720 AND a<8730;
UPDATE t1 SET b=b*2 WHERE a>=8730 AND a<8740;
UPDATE t1 SET b=b*2 WHERE a>=8740 AND a<8750;
UPDATE t1 SET b=b*2 WHERE a>=8750 AND a<8760;
UPDATE t1 SET b=b*2 WHERE a>=8760 AND a<8770;
UPDATE t1 SET b=b*2 WHERE a>=8770 AND a<8780;
UPDATE t1 SET b=b*2 WHERE a>=8780 AND a<8790;
UPDATE t1 SET b=b*2 WHERE a>=8790 AND a<8800;
UPDATE t1 SET b=b*2 WHERE a>=8800 AND a<8810;
UPDATE t1 SET b=b*2 WHERE a>=8810 AND a<8820;
UPDATE t1 SET b=b*2 WHERE a>=8820 AND a<8830;
UPDATE t1 SET b=b*2 WHERE a>=8830 AND a<8840;
UPDATE t1 SET b=b*2 WHERE a>=8840 AND a<8850;
UPDATE t1 SET b=b*2 WHERE a>=8850 AND a<8860;
UPDATE t1 SET b=b*2 WHERE a>=8860 AND a<8870;
UPDATE t1 SET b=b*2 WHERE a>=8870 AND a<8880;
UPDATE t1 SET b=b*2 WHERE a>=8880 AND a<8890;
UPDATE t1 SET b=b*2 WHERE a>=8890 AND a<8900;
UPDATE t1 SET b=b*2 WHERE a>=8900 AND a<8910;
UPDATE t1 SET b=b*2 WHERE a>=8910 AND a<8920;
UPDATE t1 SET b=b*2 WHERE a>=8920 AND a<8930;
UPDATE t1 SET b=b*2 WHERE a>=8930 AND a<8940;
UPDATE t1 SET b=b*2 WHERE a>=8940 AND a<8950;
UPDATE t1 SET b=b*2 WHERE a>=8950 AND a<8960;
UPDATE t1 SET b=b*2 WHERE a>=8960 AND a<8970;
UPDATE t1 SET b=b*2 WHERE a>=8970 AND a<8980;
UPDATE t1 SET b=b*2 WHERE a>=8980 AND a<8990;
UPDATE t1 SET b=b*2 WHERE a>=8990 AND a<9000;
UPDATE t1 SET b=b*2 WHERE a>=9000 AND a<9010;
UPDATE t1 SET b=b*2 WHERE a>=9010 AND a<9020;
UPDATE t1 SET b=b*2 WHERE a>=9020 AND a<9030;
UPDATE t1 SET b=b*2 WHERE a>=9030 AND a<9040;
UPDATE t1 SET b=b*2 WHERE a>=9040 AND a<9050;
UPDATE t1 SET b=b*2 WHERE a>=9050 AND a<9060;
UPDATE t1 SET b=b*2 WHERE a>=9060 AND a<9070;
UPDATE t1 SET b=b*2 WHERE a>=9070 AND a<9080;
UPDATE t1 SET b=b*2 WHERE a>=9080 AND a<9090;
UPDATE t1 SET b=b*2 WHERE a>=9090 AND a<9100;
UPDATE t1 SET b=b*2 WHERE a>=9100 AND a<9110;
UPDATE t1 SET b=b*2 WHERE a>=9110 AND a<9120;
UPDATE t1 SET b=b*2 WHERE a>=9120 AND a<9130;
UPDATE t1 SET b=b*2 WHERE a>=9130 AND a<9140;
UPDATE t1 SET b=b*2 WHERE a>=9140 AND a<9150;
UPDATE t1 SET b=b*2 WHERE a>=9150 AND a<9160;
UPDATE t1 SET b=b*2 WHERE a>=9160 AND a<9170;
UPDATE t1 SET b=b*2 WHERE a>=9170 AND a<9180;
UPDATE t1 SET b=b*2 WHERE a>=9180 AND a<9190;
UPDATE t1 SET b=b*2 WHERE a>=9190 AND a<9200;
UPDATE t1 SET b=b*2 WHERE a>=9200 AND a<9210;
UPDATE t1 SET b=b*2 WHERE a>=9210 AND a<9220;
UPDATE t1 SET b=b*2 WHERE a>=9220 AND a<9230;
UPDATE t1 SET b=b*2 WHERE a>=9230 AND a<9240;
UPDATE t1 SET b=b*2 WHERE a>=9240 AND a<9250;
UPDATE t1 SET b=b*2 WHERE a>=9250 AND a<9260;
UPDATE t1 SET b=b*2 WHERE a>=9260 AND a<9270;
UPDATE t1 SET b=b*2 WHERE a>=9270 AND a<9280;
UPDATE t1 SET b=b*2 WHERE a>=9280 AND a<9290;
UPDATE t1 SET b=b*2 WHERE a>=9290 AND a<9300;
UPDATE t1 SET b=b*2 WHERE a>=9300 AND a<9310;
UPDATE t1 SET b=b*2 WHERE a>=9310 AND a<9320;
UPDATE t1 SET b=b*2 WHERE a>=9320 AND a<9330;
UPDATE t1 SET b=b*2 WHERE a>=9330 AND a<9340;
UPDATE t1 SET b=b*2 WHERE a>=9340 AND a<9350;
UPDATE t1 SET b=b*2 WHERE a>=9350 AND a<9360;
UPDATE t1 SET b=b*2 WHERE a>=9360 AND a<9370;
UPDATE t1 SET b=b*2 WHERE a>=9370 AND a<9380;
UPDATE t1 SET b=b*2 WHERE a>=9380 AND a<9390;
UPDATE t1 SET b=b*2 WHERE a>=9390 AND a<9400;
UPDATE t1 SET b=b*2 WHERE a>=9400 AND a<9410;
UPDATE t1 SET b=b*2 WHERE a>=9410 AND a<9420;
UPDATE t1 SET b=b*2 WHERE a>=9420 AND a<9430;
UPDATE t1 SET b=b*2 WHERE a>=9430 AND a<9440;
UPDATE t1 SET b=b*2 WHERE a>=9440 AND a<9450;
UPDATE t1 SET b=b*2 WHERE a>=9450 AND a<9460;
UPDATE t1 SET b=b*2 WHERE a>=9460 AND a<9470;
UPDATE t1 SET b=b*2 WHERE a>=9470 AND a<9480;
UPDATE t1 SET b=b*2 WHERE a>=9480 AND a<9490;
UPDATE t1 SET b=b*2 WHERE a>=9490 AND a<9500;
UPDATE t1 SET b=b*2 WHERE a>=9500 AND a<9510;
UPDATE t1 SET b=b*2 WHERE a>=9510 AND a<9520;
UPDATE t1 SET b=b*2 WHERE a>=9520 AND a<9530;
UPDATE t1 SET b=b*2 WHERE a>=9530 AND a<9540;
UPDATE t1 SET b=b*2 WHERE a>=9540 AND a<9550;
UPDATE t1 SET b=b*2 WHERE a>=9550 AND a<9560;
UPDATE t1 SET b=b*2 WHERE a>=9560 AND a<9570;
UPDATE t1 SET b=b*2 WHERE a>=9570 AND a<9580;
UPDATE t1 SET b=b*2 WHERE a>=9580 AND a<9590;
UPDATE t1 SET b=b*2 WHERE a>=9590 AND a<9600;
UPDATE t1 SET b=b*2 WHERE a>=9600 AND a<9610;
UPDATE t1 SET b=b*2 WHERE a>=9610 AND a<9620;
UPDATE t1 SET b=b*2 WHERE a>=9620 AND a<9630;
UPDATE t1 SET b=b*2 WHERE a>=9630 AND a<9640;
UPDATE t1 SET b=b*2 WHERE a>=9640 AND a<9650;
UPDATE t1 SET b=b*2 WHERE a>=9650 AND a<9660;
UPDATE t1 SET b=b*2 WHERE a>=9660 AND a<9670;
UPDATE t1 SET b=b*2 WHERE a>=9670 AND a<9680;
UPDATE t1 SET b=b*2 WHERE a>=9680 AND a<9690;
UPDATE t1 SET b=b*2 WHERE a>=9690 AND a<9700;
UPDATE t1 SET b=b*2 WHERE a>=9700 AND a<9710;
UPDATE t1 SET b=b*2 WHERE a>=9710 AND a<9720;
UPDATE t1 SET b=b*2 WHERE a>=9720 AND a<9730;
UPDATE t1 SET b=b*2 WHERE a>=9730 AND a<9740;
UPDATE t1 SET b=b*2 WHERE a>=9740 AND a<9750;
UPDATE t1 SET b=b*2 WHERE a>=9750 AND a<9760;
UPDATE t1 SET b=b*2 WHERE a>=9760 AND a<9770;
UPDATE t1 SET b=b*2 WHERE a>=9770 AND a<9780;
UPDATE t1 SET b=b*2 WHERE a>=9780 AND a<9790;
UPDATE t1 SET b=b*2 WHERE a>=9790 AND a<9800;
UPDATE t1 SET b=b*2 WHERE a>=9800 AND a<9810;
UPDATE t1 SET b=b*2 WHERE a>=9810 AND a<9820;
UPDATE t1 SET b=b*2 WHERE a>=9820 AND a<9830;
UPDATE t1 SET b=b*2 WHERE a>=9830 AND a<9840;
UPDATE t1 SET b=b*2 WHERE a>=9840 AND a<9850;
UPDATE t1 SET b=b*2 WHERE a>=9850 AND a<9860;
UPDATE t1 SET b=b*2 WHERE a>=9860 AND a<9870;
UPDATE t1 SET b=b*2 WHERE a>=9870 AND a<9880;
UPDATE t1 SET b=b*2 WHERE a>=9880 AND a<9890;
UPDATE t1 SET b=b*2 WHERE a>=9890 AND a<9900;
UPDATE t1 SET b=b*2 WHERE a>=9900 AND a<9910;
UPDATE t1 SET b=b*2 WHERE a>=9910 AND a<9920;
UPDATE t1 SET b=b*2 WHERE a>=9920 AND a<9930;
UPDATE t1 SET b=b*2 WHERE a>=9930 AND a<9940;
UPDATE t1 SET b=b*2 WHERE a>=9940 AND a<9950;
UPDATE t1 SET b=b*2 WHERE a>=9950 AND a<9960;
UPDATE t1 SET b=b*2 WHERE a>=9960 AND a<9970;
UPDATE t1 SET b=b*2 WHERE a>=9970 AND a<9980;
UPDATE t1 SET b=b*2 WHERE a>=9980 AND a<9990;
UPDATE t1 SET b=b*2 WHERE a>=9990 AND a<10000;
COMMIT;
